The Fusion Garage claim seems to center around there being a "lack of any formal legal relationship or contract" between the two companies, despite their openly working jointly on JooJoo's development. Much of the filing is the legalese version of JooJoo's previous response, and in parts reads like a terribly depressing (and one-sided) history of what could have been a terrific device. That is, before it became pretty much irrelevant.